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    <title>Web前端基础-拓展学习网站</title>
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        a:link {
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        a:visited {
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        a:hover {
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        a:active {
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    <h2>Yiran学习天地--学习网站跳转</h2>
    <p><a href="https://www.sogou.com">这是搜狗链接。</a></p>
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